Hi Apasha,
You don't need a tool to configure the 3300. You web browse to it. You cannot just upgrade to the latest software either it requires software assurance etc. The 3300 is very complex for someone who has never used one before, not like a SMB type system were you can easily just work out if you have never seen one before. I would suggest if you have never seen one either go on a training course first or hire someone with knowledge to talk you through and give you background on the product.
Regards